var debug = require('debug')('admin:server');
var express = require('express');
var path = require('path');
var http = require('http');
var favicon = require('serve-favicon');
// var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var session = require('express-session');
var logger = require('./logger');
var routes = require('./routes');

// var index = require('./routes/index');
// var users = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
// app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(session({
  secret: 'sessiontest',  //与cookieParser中的一致
  resave: true,
  saveUninitialized:true,
  cookie: {
    maxAge: 24*60*60*1000  // 有效期，单位是毫秒
  }
}));
app.use(express.static(path.join(__dirname, 'public')));

// app.use('/', index);
// app.use('/users', users);

routes(app);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});


// module.exports = app;

app.set('port', '3000');

/**
 * Create HTTP server.
 */

var server = http.createServer(app);
server.listen('3000', function() {
  logger.info('app is run port: 3000!');
});
server.on('error', onError);
server.on('listening', onListening);


/**
 * Event listener for HTTP server "error" event.
 */

function onError(error) {
  if (error.syscall !== 'listen') {
    throw error;
  }

  var bind = typeof port === 'string'
    ? 'Pipe ' + port
    : 'Port ' + port;

  // handle specific listen errors with friendly messages
  switch (error.code) {
    case 'EACCES':
      console.error(bind + ' requires elevated privileges');
      process.exit(1);
      break;
    case 'EADDRINUSE':
      console.error(bind + ' is already in use');
      process.exit(1);
      break;
    default:
      throw error;
  }
}

/**
 * Event listener for HTTP server "listening" event.
 */

function onListening() {
  var addr = server.address();
  var bind = typeof addr === 'string'
    ? 'pipe ' + addr
    : 'port ' + addr.port;
  debug('Listening on ' + bind);
}
